20" Precision AR build

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  • 1slow01Z71

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    Jun 24, 2012
    2,404
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    Kyle
    I had been using this upper with a different scope for a while on my 300blk lower but once I got the 300blk coated by Jim in FDE it looked retarded plus I really like the PRS for precision shooting(surprise) and I also wanted to try the geissele national match trigger. Im very happy with the way it all turned out and the upper was a shooter before so Im sure itll only get better now.

    I cant even begin to describe how awesome the geissele NM trigger is. Ive got the geissele SSA-E, SD3G and SD-C, the NM is even better. For a bench gun I don't see how there could be a better trigger. It took about an hour to install and set up as to my liking but once it was set it is just sweet. THe first stage feels like any other geissele pretty much but the second stage is so clean and light I cant wait to fire off some rounds. The main use for this rifle will be shooting 77gr loads on out a ways while Im letting the 308 and 300WM cool off as well as clearing prairie dog towns when we go to new mexico elk hunting.

    Lower:
    Northtech Defense billet lower
    BAD EPS take down pins
    BAD ASS safety
    Geissele National Match with match spring
    Magpul MIAD
    Magpul PRS with standard rifle buffer and accushot monopod

    Upper:
    Vltor MUR upper
    White Oak Armament 20" fluted SDM 7twist rifle gas with factory headspaced bolt
    Fortis RED brake(no recoil at all)
    Vltor SS gas block
    Rainier Arms carrier
    Noveske NSR 16.7"
    Noveske TRX sling tud mount for bipod
    Harris 6-9" bipod
    Bobro 30mm slightly forward scope mount
    SWFA 3-15x42 FFP mil quad reticle

    20131121_214538_zpsebbb2210.jpg

    20131121_214547_zps639436fd.jpg

    I really like how the flutes look through the handguard
    20131121_214607_zps44fe1ee3.jpg

    Highly recommend this brake and it makes a really cool flame in the dark
    20131121_214639_zpsbf93d45b.jpg

    Anodizing doesn't really match but whatda you gonna do?
    20131121_214814_zps0b7f9e88.jpg


    Id like to get some good iron sights to practice my long range irons shooting eventually, just undecided on which way to go. Id like a set of KACs but not at 350 for a set.

    The only other thing I may do is switch to a JP low mass setup but thatll be on down the road since itll be another 400 bucks to do that.
     

    TXDARKHORSE361

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    May 15, 2012
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    Nice, I'm definitely leaning towards getting the Geissele NM trigger for my 24" bull barreled AR, anyways great looking rifle.
     

    1slow01Z71

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    Jun 24, 2012
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    Kyle
    The NM is worth ever dollar of its 280 dollar price tag. It flat out works awesome. Its on par with the jewels and hubers I've tried.

    The gas block is not adjustable. Its just a standard stainless gas block. Thats why I say itll be a chunk of change to swap to the low mass setup and at this time isnt worth it to me. Id rather buy a couple more suppressors and a bushnell ERS. Maybe after that I'll tinker some more with this one but I'm pretty sure I'll be happy the way it is. Tje rifle gas and buffer really shoot soft along with the weight of the rifle and the brake.
     

    SOliver

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    Jun 10, 2012
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    Pretty similar to my precision 20" AR and I used that same WOA barrel. It's an absolute tack driver. Very nice build though.
     

    40Arpent

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    Jul 16, 2008
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    Houston
    Besides the obvious functional excellence of that build, the MUR upper's lines work really well with the billet lower. Serious eye candy.
     

    1slow01Z71

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    Jun 24, 2012
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    Kyle
    Pretty similar to my precision 20" AR and I used that same WOA barrel. It's an absolute tack driver. Very nice build though.
    I haven't given it a fair shake yet to really evaluate its accuracy but initial testing has been well under an inch with 23.8gr of varget under a 77gr smk. Im going to switch to the 77gr nosler custom competitions though so hopefully that load still works well with the new pills.
    Besides the obvious functional excellence of that build, the MUR upper's lines work really well with the billet lower. Serious eye candy.
    Yeah I was pleasantly surprised how well they matched up. The anodizing matches better than the pictures show. For some reason the MUR looks really blue but its not. Definitely doesn't match, but not that bad.
     

    1slow01Z71

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    Jun 24, 2012
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    Kyle
    Time to step up my game a bit more. PRI makes a mag that reportedly allows a 2.3 COL which is huge over the standard 2.24ish that pmags allow. I believe with this mag I may be able to load a 75gr amax which at a .435 BC and 2gr lighter than the 77gr SMKs and 77gr nosler CCs this could make for a hell of combination out of a lowly 223 rifle. I plan to seat them as long as I can and pump them up as much as possible with some XBR as I don't think Ill have the case volume for using my usual varget load. With 23.8gr of varget my 77gr load is already pretty dang full and the amax has a lot longer boat tail. Also bought a box of these
    Berger Target Bullets 22 Cal (224 Diameter) 80.5 Grain Fullbore Hollow
    People have reported great results with these at a little over book max COL and if this new mag allows an honest 2.3 then atleast the bergers will be money for long range work.

    The mag I ordered is pretty spendy at 50 bucks shipped with the 15% off code but if it all works out itll be worth it
    https://www.precisionreflex.com/Detail.aspx?PROD=186788&CAT=4294
    The thread I got the idea from
    75gr A-Max to mag length?

    Taking it out to the range to finalize my 77gr load and run them over the magentospeed to true my ballistics app Sunday. Hoping to have this gun, my 308 and the 300WM ready for best of the west 1000yd outing in January after deer season.
     
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